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Astrocook: a thousand recipes to cook a spectrum
Author(s): Guido Cupani; Giorgio Calderone; Stefano Cristiani; Paolo Di Marcantonio; Valentina D'Odorico; Giuliano Taffoni
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Paper Abstract

Astrocook is a new Python package to analyze the spectra of quasi-stellar objects (QSOs) from the near-UV band to the near-infrared band. The project stems from the lessons learned in developing the data analysis software for the VLT ESPRESSO spectrograph. The idea is to leverage numerical libraries like SciPy, NumPy, and Lmfit and astronomical libraries like Astropy to produce a collection of high-level recipes capable of interpreting the features observed in QSO spectra (such as the emission continuum and the absorption systems) in an automated and validated way. The package provides great flexibility in designing the operational workflow, as well as a set of interactive tools to apply the recipes in a seamless way. The aim is to achieve the combination of accuracy, stability, and repeatability of the procedure that is required by several compelling science cases in the era of ”precision cosmology” (e.g. the measurement of a possible variability in the value of fundamental constants, and the direct measurement of the accelerated expansion of the Universe).

Paper Details

Date Published: 6 July 2018
PDF: 11 pages
Proc. SPIE 10707, Software and Cyberinfrastructure for Astronomy V, 1070723 (6 July 2018); doi: 10.1117/12.2312093
Show Author Affiliations
Guido Cupani, INAF - Osservatorio Astronomico di Trieste (Italy)
Giorgio Calderone, INAF - Osservatorio Astronomico di Trieste (Italy)
Stefano Cristiani, INAF - Osservatorio Astronomico di Trieste (Italy)
Paolo Di Marcantonio, INAF - Osservatorio Astronomico di Trieste (Italy)
Valentina D'Odorico, INAF - Osservatorio Astronomico di Trieste (Italy)
Giuliano Taffoni, INAF - Osservatorio Astronomico di Trieste (Italy)


Published in SPIE Proceedings Vol. 10707:
Software and Cyberinfrastructure for Astronomy V
Juan C. Guzman; Jorge Ibsen, Editor(s)

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